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2015-09-16include/exec: Move cputlb exec.c defs outPeter Crosthwaite
Move the architecture agnostic function prototypes for exec.c out of cputlb.h to exec-all.h. This allows hiding of the arch specific cputlb.h from exec.c which should be getting close to having no architecture specifics. Prepares support for multi-arch, which will have a minimal cpu.h that services exec.c but not cputlb.h. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-Id: <b4fe754c58c860315e35d44430c26b1c967ce2c9.1441614289.git.crosthwaite.peter@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16cputlb: Change tlb_set_dirty() arg to cpuPeter Crosthwaite
Change tlb_set_dirty() to accept a CPU instead of an env pointer. This allows for removal of another CPUArchState usage from prototypes that need to be QOMified. Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-Id: <d2b1dcbe7945112989861d8ba7369449c11cc273.1441614289.git.crosthwaite.peter@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16cputlb: move CPU_LOOP() for tlb_reset() to exec.cPeter Crosthwaite
To prepare for multi-arch, cputlb.c should only have awareness of one single architecture. This means it should not have access to the full CPU lists which may be heterogeneous. Instead, push the CPU_LOOP() up to the one and only caller in exec.c. Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-Id: <db06dc6c49f8970caaf116d0385f00ee10a56f2f.1441614289.git.crosthwaite.peter@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-14Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
* Support for jemalloc * qemu_mutex_lock_iothread "No such process" fix * cutils: qemu_strto* wrappers * iohandler.c simplification * Many other fixes and misc patches. And some MTTCG work (with Emilio's fixes squashed): * Signal-free TCG kick * Removing spinlock in favor of QemuMutex * User-mode emulation multi-threading fixes/docs # gpg: Signature made Thu 10 Sep 2015 09:03:07 BST using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" * remotes/bonzini/tags/for-upstream: (44 commits) cutils: work around platform differences in strto{l,ul,ll,ull} cpu-exec: fix lock hierarchy for user-mode emulation exec: make mmap_lock/mmap_unlock globally available tcg: comment on which functions have to be called with mmap_lock held tcg: add memory barriers in page_find_alloc accesses remove unused spinlock. replace spinlock by QemuMutex. cpus: remove tcg_halt_cond and tcg_cpu_thread globals cpus: protect work list with work_mutex scripts/dump-guest-memory.py: fix after RAMBlock change configure: Add support for jemalloc add macro file for coccinelle configure: factor out adding disas configure vhost-scsi: fix wrong vhost-scsi firmware path checkpatch: remove tests that are not relevant outside the kernel checkpatch: adapt some tests to QEMU CODING_STYLE: update mixed declaration rules qmp: Add example usage of strto*l() qemu wrapper cutils: Add qemu_strtoull() wrapper cutils: Add qemu_strtoll() wrapper ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-11cpu-exec: introduce loop exit with restore functionPavel Dovgalyuk
This patch introduces loop exit function, which also restores guest CPU state according to the value of host program counter. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150710095702.13280.97477.stgit@PASHA-ISP> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-11softmmu: remove now unused functionsPavel Dovgalyuk
Now that the cpu_ld/st_* function directly call helper_ret_ld/st, we can drop the old helper_ld/st functions. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150710095656.13280.7085.stgit@PASHA-ISP> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-11softmmu: add helper function to pass through retaddrPavel Dovgalyuk
This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150710095650.13280.32255.stgit@PASHA-ISP> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-11tlb: Add "ifetch" argument to cpu_mmu_index()Benjamin Herrenschmidt
This is set to true when the index is for an instruction fetch translation. The core get_page_addr_code() sets it, as do the SOFTMMU_CODE_ACCESS acessors. All targets ignore it for now, and all other callers pass "false". This will allow targets who wish to split the mmu index between instruction and data accesses to do so. A subsequent patch will do just that for PowerPC. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Message-Id: <1439796853-4410-2-git-send-email-benh@kernel.crashing.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-11typofixes - v4Veres Lajos
Signed-off-by: Veres Lajos <vlajos@gmail.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-09-11maint: remove / fix many doubled wordsDaniel P. Berrange
Many source files have doubled words (eg "the the", "to to", and so on). Most of these can simply be removed, but a couple were actual mis-spellings (eg "to to" instead of "to do"). There was even one triple word score "to to to" :-) Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-09-09exec: make mmap_lock/mmap_unlock globally availablePaolo Bonzini
There is some iffy lock hierarchy going on in translate-all.c. To fix it, we need to take the mmap_lock in cpu-exec.c. Make the functions globally available. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-09remove unused spinlock.KONRAD Frederic
This just removes spinlock as it is not used anymore. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Message-Id: <1439220437-23957-6-git-send-email-fred.konrad@greensocs.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-09replace spinlock by QemuMutex.KONRAD Frederic
spinlock is only used in two cases: * cpu-exec.c: to protect TranslationBlock * mem_helper.c: for lock helper in target-i386 (which seems broken). It's a pthread_mutex_t in user-mode, so we can use QemuMutex directly, with an #ifdef. The #ifdef will be removed when multithreaded TCG will need the mutex as well. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Message-Id: <1439220437-23957-5-git-send-email-fred.konrad@greensocs.com> Signed-off-by: Emilio G. Cota <cota@braap.org> [Merge Emilio G. Cota's patch to remove volatile. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-09Move RAMBlock and ram_list to ram_addr.hDr. David Alan Gilbert
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <1439547914-18249-1-git-send-email-dgilbert@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-09tcg: signal-free qemu_cpu_kickPaolo Bonzini
Signals are slow and do not exist on Win32. The previous patches have done most of the legwork to introduce memory barriers (some of them were even there already for the sake of Windows!) and we can now set the flags directly in the iothread. qemu_cpu_kick_thread is not used anymore on TCG, since the TCG thread is never outside usermode while the CPU is running (not halted). Instead run the content of the signal handler (now in qemu_cpu_kick_no_halt) directly. qemu_cpu_kick_no_halt is also used in qemu_mutex_lock_iothread to avoid the overhead of qemu_cond_broadcast. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-09tcg: introduce tcg_current_cpuPaolo Bonzini
This is already useful on Windows in order to remove tls.h, because accesses to current_cpu are done from a different thread on that platform. It will be used on POSIX platforms as soon TCG stops using signals to interrupt the execution of translated code. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-07include/exec/softmmu-semi.h: Add support for 64-bit valuesPeter Maydell
Add support for getting and setting 64-bit values in the softmmu semihosting support functions. This will be needed for 64-bit ARM semihosting. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Christopher Covington <cov@codeaurora.org> Message-id: 1439483745-28752-6-git-send-email-peter.maydell@linaro.org
2015-09-07gdbstub: Implement gdb_do_syscallv()Peter Maydell
Implement a variant of the existing gdb_do_syscall() which takes a va_list. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Christopher Covington <cov@codeaurora.org> Message-id: 1439483745-28752-4-git-send-email-peter.maydell@linaro.org
2015-08-26exec-all: Translate TCI return addresses backwards tooPeter Crosthwaite
This subtraction of return addresses applies directly to TCI as well as host-TCG. This fixes Linux boots for at least Microblaze, CRIS, ARM and SH4 when using TCI. [sw: Removed indentation for preprocessor statement] [sw: The patch also fixes Linux boot for x86_64] Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
2015-08-25cputlb: Add functions for flushing TLB for a single MMU indexPeter Maydell
Guest CPU TLB maintenance operations may be sufficiently specialized to only need to flush TLB entries corresponding to a particular MMU index. Implement cputlb functions for this, to avoid the inefficiency of flushing TLB entries which we don't need to. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1439548879-1972-2-git-send-email-peter.maydell@linaro.org
2015-08-24linux-user: remove useless macros GUEST_BASE and RESERVED_VALaurent Vivier
As we have removed CONFIG_USE_GUEST_BASE, we always use a guest base and the macros GUEST_BASE and RESERVED_VA become useless: replace them by their values. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <1440420834-8388-1-git-send-email-laurent@vivier.eu> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-08-24linux-user: remove --enable-guest-base/--disable-guest-baseLaurent Vivier
All tcg host architectures now support the guest base and as there is no real performance lost, it can be always enabled. Anyway, guest base use can be disabled lively by setting guest base to 0. CONFIG_USE_GUEST_BASE is defined as (USE_GUEST_BASE && USER_ONLY), it should have to be replaced by CONFIG_USER_ONLY in non CONFIG_USER_ONLY parts, but as some other parts are using !CONFIG_SOFTMMU I have chosen to use !CONFIG_SOFTMMU instead. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <1440373328-9788-2-git-send-email-laurent@vivier.eu> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-08-18Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
* SCSI fixes from Stefan and Fam * vhost-scsi fix from Igor and Lu Lina * a build system fix from Daniel * two more multi-arch-related patches from Peter C. * TCG patches from myself and Sergey Fedorov * RCU improvement from Wen Congyang * a few more simple cleanups # gpg: Signature made Fri 14 Aug 2015 22:41:52 BST using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: disas: Defeature print_target_address hw: fix mask for ColdFire UART command register scsi-generic: identify AIO callbacks more clearly scsi-disk: identify AIO callbacks more clearly scsi: create restart bottom half in the right AioContext configure: only add CONFIG_RDMA to config-host.h once qemu-nbd: remove unnecessary qemu_notify_event() vhost-scsi: Clarify vhost_virtqueue_mask argument exec: use macro ROUND_UP for alignment rcu: Allow calling rcu_(un)register_thread() during synchronize_rcu() exec: drop cpu_can_do_io, just read cpu->can_do_io cpu_defs: Simplify CPUTLB padding logic cpu-exec: Do not invalidate original TB in cpu_exec_nocache() vhost/scsi: call vhost_dev_cleanup() at unrealize() time virtio-scsi-test: Add test case for tail unaligned WRITE SAME scsi-disk: Fix assertion failure on WRITE SAME tests: virtio-scsi: clear unit attention after reset scsi-disk: fix cmd.mode field typo virtio-scsi: use virtqueue_map_sg() when loading requests Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-08-14exec: drop cpu_can_do_io, just read cpu->can_do_ioPaolo Bonzini
After commit 626cf8f (icount: set can_do_io outside TB execution, 2014-12-08), can_do_io is set to 1 if not executing code. It is no longer necessary to make this assumption in cpu_can_do_io. It is also possible to remove the use_icount test, simply by never setting cpu->can_do_io to 0 unless use_icount is true. With these changes cpu_can_do_io boils down to a read of cpu->can_do_io. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-08-13Merge memory_region_init_reservation() into memory_region_init_io()Pavel Fedin
Just specifying ops = NULL in some cases can be more convenient than having two functions. Signed-off-by: Pavel Fedin <p.fedin@samsung.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 78a379ab1b6b30ab497db7971ad336dad1dbee76.1438758065.git.p.fedin@samsung.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-08-06cpu_defs: Simplify CPUTLB padding logicPeter Crosthwaite
There was a complicated subtractive arithmetic for determining the padding on the CPUTLBEntry structure. Simplify this with a union. Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-Id: <1436130533-18565-1-git-send-email-crosthwaite.peter@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-08-06cpu-exec: Do not invalidate original TB in cpu_exec_nocache()Sergey Fedorov
Instead of invalidating an original TB in cpu_exec_nocache() prematurely, just save a link to it in the temporary generated TB. If cpu_io_recompile() is raised subsequently from the temporary TB, invalidate the original one as well. That allows reusing the original TB each time cpu_exec_nocache() is called to handle expired instruction counter in icount mode. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Message-Id: <1435656909-29116-1-git-send-email-serge.fdrv@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-24memory: count number of active VGA logging clientsPaolo Bonzini
For a board that has multiple framebuffer devices, both of them might want to use DIRTY_MEMORY_VGA on the same memory region. The lack of reference counting in memory_region_set_log makes this very awkward to implement. Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-09cpu: Change cpu_exec_init() arg to cpu, not envPeter Crosthwaite
The callers (most of them in target-foo/cpu.c) to this function all have the cpu pointer handy. Just pass it to avoid an ENV_GET_CPU() from core code (in exec.c). Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Michael Walle <michael@walle.cc> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Anthony Green <green@moxielogic.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-09gdbstub: Change gdbserver_fork() to accept cpu instead of envPeter Crosthwaite
All callsites to this function navigate the cpu->env_ptr only for the function to take the env ptr back to the original cpu ptr. Change the function to just pass in the CPU pointer instead. Removes a core code usage of ENV_GET_CPU() (in gdbstub.c). Cc: Riku Voipio <riku.voipio@iki.fi> Reviewed-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-09translate-all: Change tb_flush() env argument to cpuPeter Crosthwaite
All of the core-code usages of this API have the cpu pointer handy so pass it in. There are only 3 architecture specific usages (2 of which are commented out) which can just use ENV_GET_CPU() locally to get the cpu pointer. The reduces core code usage of the CPU env, which brings us closer to common-obj'ing these core files. Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-09cpu: Add Error argument to cpu_exec_init()Bharata B Rao
Add an Error argument to cpu_exec_init() to let users collect the error. This is in preparation to change the CPU enumeration logic in cpu_exec_init(). With the new enumeration logic, cpu_exec_init() can fail if cpu_index values corresponding to max_cpus have already been handed out. Since all current callers of cpu_exec_init() are from instance_init, use error_abort Error argument to abort in case of an error. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-07migration: extend migration_bitmapLi Zhijian
Prevously, if we hotplug a device(e.g. device_add e1000) during migration is processing in source side, qemu will add a new ram block but migration_bitmap is not extended. In this case, migration_bitmap will overflow and lead qemu abort unexpectedly. Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com> Signed-off-by: Wen Congyang <wency@cn.fujitsu.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-07-06cpu-all: complete "real" host page size APIPeter Crosthwaite
Currently the "host" page size alignment API is really aligning to both host and target page sizes. There is the qemu_real_page_size which can be used for the actual host page size but it's missing a mask and ALIGN macro as provided for qemu_page_size. Complete the API. This allows system level code that cares about the host page size to use a consistent alignment interface without having to un-needingly align to the target page size. This also reduces system level code dependency on the cpu specific TARGET_PAGE_SIZE. Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2015-07-06Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
* more of Peter Crosthwaite's multiarch preparation patches * unlocked MMIO support in KVM * support for compilation with ICC # gpg: Signature made Mon Jul 6 13:59:20 2015 BST using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: exec: skip MMIO regions correctly in cpu_physical_memory_write_rom_internal Stop including qemu-common.h in memory.h kvm: Switch to unlocked MMIO acpi: mark PMTIMER as unlocked kvm: Switch to unlocked PIO kvm: First step to push iothread lock out of inner run loop memory: let address_space_rw/ld*/st* run outside the BQL exec: pull qemu_flush_coalesced_mmio_buffer() into address_space_rw/ld*/st* memory: Add global-locking property to memory regions main-loop: introduce qemu_mutex_iothread_locked main-loop: use qemu_mutex_lock_iothread consistently Fix irq route entries exceeding KVM_MAX_IRQ_ROUTES cpu-defs: Move out TB_JMP defines include/exec: Move tb hash functions out include/exec: Move standard exceptions to cpu-all.h cpu-defs: Move CPU_TEMP_BUF_NLONGS to tcg memory_mapping: Rework cpu related includes cutils: allow compilation with icc qemu-common: add VEC_OR macro Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-07-06Stop including qemu-common.h in memory.hPeter Maydell
Including qemu-common.h from other header files is generally a bad idea, because it means it's very easy to end up with a circular dependency. For instance, if we wanted to include memory.h from qom/cpu.h we'd end up with this loop: memory.h -> qemu-common.h -> cpu.h -> cpu-qom.h -> qom/cpu.h -> memory.h Remove the include from memory.h. This requires us to fix up a few other files which were inadvertently getting declarations indirectly through memory.h. The biggest change is splitting the fprintf_function typedef out into its own header so other headers can get at it without having to include qemu-common.h. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <1435933104-15216-1-git-send-email-peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-01memory: Add global-locking property to memory regionsJan Kiszka
This introduces the memory region property "global_locking". It is true by default. By setting it to false, a device model can request BQL-free dispatching of region accesses to its r/w handlers. The actual BQL break-up will be provided in a separate patch. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Frederic Konrad <fred.konrad@greensocs.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <1434646046-27150-4-git-send-email-pbonzini@redhat.com>
2015-06-26cpu-defs: Move out TB_JMP definesPeter Crosthwaite
These are not Architecture specific in any way so move them out of cpu-defs.h. tb-hash.h is an appropriate place as a leading user and their strong relationship to TB hashing and caching. Reviewed-by: Richard Henderson <rth@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-Id: <43ceca65a3fa240efac49aa0bf604ad0442e1710.1433052532.git.crosthwaite.peter@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-06-26include/exec: Move tb hash functions outPeter Crosthwaite
This is one of very few things in exec-all with a genuine CPU architecture dependency. Move these hashing helpers to a new header to trim exec-all.h down to a near architecture-agnostic header. The defs are only used by cpu-exec and translate-all which are both arch-obj's so the new tb-hash.h has no core code usage. Reviewed-by: Richard Henderson <rth@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-Id: <9d048b96f7cfa64a4d9c0b88e0dd2877fac51d41.1433052532.git.crosthwaite.peter@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-06-26include/exec: Move standard exceptions to cpu-all.hPeter Crosthwaite
These exception indicies are generic and don't have any reliance on the per-arch cpu.h defs. Move them to cpu-all.h so they can be used by core code that does not have access to cpu-defs.h. Reviewed-by: Richard Henderson <rth@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-Id: <dbebd3062c7cd4332240891a3564e73f374ddfcd.1433052532.git.crosthwaite.peter@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-06-26cpu-defs: Move CPU_TEMP_BUF_NLONGS to tcgPeter Crosthwaite
The usages of this define are pure TCG and there is no architecture specific variation of the value. Localise it to the TCG engine to remove another architecture agnostic piece from cpu-defs.h. This follows on from a28177820a868eafda8fab007561cc19f41941f4 where temp_buf was moved out of the CPU_COMMON obsoleting the need for the super early definition. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-Id: <498e8e5325c1a1aff79e5bcfc28cb760ef6b214e.1433052532.git.crosthwaite.peter@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-06-26include/softmmu-semi.h: Make semihosting support 64-bit cleanMaciej W. Rozycki
Correct addresses passed around in semihosting to use a data type suitable for both 32-bit and 64-bit targets. Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-06-19semihosting: add --semihosting-config arg sub-argumentLeon Alrae
Add new "arg" sub-argument to the --semihosting-config allowing the user to pass multiple input arguments separately. It is required for example by UHI semihosting to construct argc and argv. Also, update ARM semihosting to support new option (at the moment it is the only target which cares about arguments). If the semihosting is enabled and no semihosting args have been specified, then fall back to -kernel/-append. The -append string is split on whitespace before initializing semihosting.argv[1..n]; this is different from what QEMU MIPS machines' pseudo-bootloaders do (i.e. argv[1] contains the whole -append), but is more intuitive from UHI user's point of view and Linux kernel just does not care as it concatenates argv[1..n] into single cmdline string anyway. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Message-id: 1434643256-16858-3-git-send-email-leon.alrae@imgtec.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-19semihosting: create SemihostingConfig structure and semihost.hLeon Alrae
Remove semihosting_enabled and semihosting_target and replace them with SemihostingConfig structure containing equivalent fields. The structure is defined in vl.c where it is actually set. Also introduce separate header file include/exec/semihost.h allowing to access semihosting config related stuff from target specific semihosting code. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1434643256-16858-2-git-send-email-leon.alrae@imgtec.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-17softmmu: provide tlb_vaddr_to_host function for user modeAurelien Jarno
To avoid to many #ifdef in target code, provide a tlb_vaddr_to_host for both user and softmmu modes. In the first case the function always succeed and just call the g2h function. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-15linux-user: Allocate thunk size dynamicallyAlexander Graf
We store all struct types in an array of static size without ever checking whether we overrun it. Of course some day someone (like me in another, ancient ALSA enabling patch set) will run into the limit without realizing it. So let's make the allocation dynamic. We already know the number of structs that we want to allocate, so we only need to pass the variable into the respective piece of code. Also, to ensure we don't accidently overwrite random memory, add some asserts to sanity check whether a thunk is actually part of our array. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2015-06-12Merge remote-tracking branch 'remotes/lalrae/tags/mips-20150612' into stagingPeter Maydell
MIPS patches 2015-06-12 Changes: * improve dp8393x network card and rc4030 chipset emulation * support misaligned R6 and MSA memory accesses * support MIPS eXtended and Large Physical Addressing * add Config5.FRE bit and ERETNC instruction (Config5.LLB) * support ememsize on MALTA # gpg: Signature made Fri Jun 12 09:38:11 2015 BST using RSA key ID 0B29DA6B # gpg: Good signature from "Leon Alrae <leon.alrae@imgtec.com>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 8DD3 2F98 5495 9D66 35D4 4FC0 5211 8E3C 0B29 DA6B * remotes/lalrae/tags/mips-20150612: (29 commits) target-mips: enable XPA and LPA features target-mips: remove misleading comments in translate_init.c target-mips: add MTHC0 and MFHC0 instructions target-mips: add CP0.PageGrain.ELPA support target-mips: support Page Frame Number Extension field target-mips: extend selected CP0 registers to 64-bits in MIPS32 target-mips: correct MFC0 for CP0.EntryLo in MIPS64 net/dp8393x: fix hardware reset net/dp8393x: correctly reset in_use field net/dp8393x: add load/save support net/dp8393x: add PROM to store MAC address net/dp8393x: QOM'ify net/dp8393x: use dp8393x_ prefix for all functions net/dp8393x: do not use old_mmio accesses net/dp8393x: always calculate proper checksums dma/rc4030: convert to QOM dma/rc4030: use trace events instead of custom logging dma/rc4030: document register at offset 0x210 dma/rc4030: do not use old_mmio accesses dma/rc4030: use AddressSpace and address_space_rw in users ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-12qemu_ram_foreach_block: pass up error value, and down the ramblock nameDr. David Alan Gilbert
check the return value of the function it calls and error if it's non-0 Fixup qemu_rdma_init_one_block that is the only current caller, and rdma_add_block the only function it calls using it. Pass the name of the ramblock to the function; helps in debugging. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: Michael R. Hines <mrhines@us.ibm.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-06-11softmmu: Add probe_write()Yongbok Kim
Probe for whether the specified guest write access is permitted. If it is not permitted then an exception will be taken in the same way as if this were a real write access (and we will not return). Otherwise the function will return, and there will be a valid entry in the TLB for this access. Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-05target-i386: introduce cpu_get_mem_attrsPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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